Request Methods
As I mentioned in the previous chapter, you can control which method a form submission uses using the method attribute of the form tag. Web servers accept three types of requests: GET, POST, and HEAD. A request from a program to a Web server looks like this:
GET /index.html HTTP/1.0
The first part of the request, which is GET in this case, is the method for that request. The second part, /index.html, is the URL being requested. The third part of the request, HTTP/1.0, is the protocol that the client is using.
 | There are generally additional header lines that are included with the request, but the request line itself is all that ... |
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